linux/sound/soc/meson/axg-tdm-interface.c

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
//
// Copyright (c) 2018 BayLibre, SAS.
// Author: Jerome Brunet <[email protected]>

#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>

#include "axg-tdm.h"

/* Maximum bit clock frequency according the datasheets */
#define MAX_SCLK …

enum { … };

static unsigned int axg_tdm_slots_total(u32 *mask)
{ … }

int axg_tdm_set_tdm_slots(struct snd_soc_dai *dai, u32 *tx_mask,
			  u32 *rx_mask, unsigned int slots,
			  unsigned int slot_width)
{ … }
EXPORT_SYMBOL_GPL(…);

static int axg_tdm_iface_set_sysclk(struct snd_soc_dai *dai, int clk_id,
				    unsigned int freq, int dir)
{ … }

static int axg_tdm_iface_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{ … }

static int axg_tdm_iface_startup(struct snd_pcm_substream *substream,
				 struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_set_stream(struct snd_pcm_substream *substream,
				    struct snd_pcm_hw_params *params,
				    struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_set_lrclk(struct snd_soc_dai *dai,
				   struct snd_pcm_hw_params *params)
{ … }

static int axg_tdm_iface_set_sclk(struct snd_soc_dai *dai,
				  struct snd_pcm_hw_params *params)
{ … }

static int axg_tdm_iface_hw_params(struct snd_pcm_substream *substream,
				   struct snd_pcm_hw_params *params,
				   struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_hw_free(struct snd_pcm_substream *substream,
				 struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_trigger(struct snd_pcm_substream *substream,
				 int cmd,
				 struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_remove_dai(struct snd_soc_dai *dai)
{ … }

static int axg_tdm_iface_probe_dai(struct snd_soc_dai *dai)
{ … }

static const struct snd_soc_dai_ops axg_tdm_iface_ops = …;

/* TDM Backend DAIs */
static const struct snd_soc_dai_driver axg_tdm_iface_dai_drv[] = …;

static int axg_tdm_iface_set_bias_level(struct snd_soc_component *component,
					enum snd_soc_bias_level level)
{ … }

static const struct snd_soc_dapm_widget axg_tdm_iface_dapm_widgets[] = …;

static const struct snd_soc_dapm_route axg_tdm_iface_dapm_routes[] = …;

static const struct snd_soc_component_driver axg_tdm_iface_component_drv = …;

static const struct of_device_id axg_tdm_iface_of_match[] = …;
MODULE_DEVICE_TABLE(of, axg_tdm_iface_of_match);

static int axg_tdm_iface_probe(struct platform_device *pdev)
{ … }

static struct platform_driver axg_tdm_iface_pdrv = …;
module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;